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The 2010-S Yellowstone Quarter is worth anywhere from $2.50 in typical proof condition to over $1,200 for rare silver specimens in perfect grade. Whether you found one in your change or inherited a collection, these beautiful coins featuring the Old Faithful geyser are definitely worth a closer look.
| Coin Type | Estimated Value |
|---|---|
| 2010-S Clad Proof | $2.50 – $10.00 |
| 2010-S Silver Proof | $15.00 – $45.00 |
| 2010-S High Grade (PR70) | $150 – $1,200+ |
History of the 2010-S Yellowstone National Park Quarter
The 2010-S Yellowstone Quarter holds a special place in American numismatics as the second release in the ambitious “America the Beautiful” (ATB) Quarters Program. This series, which ran from 2010 to 2021, sought to honor a national site from each U.S. state, district, and territory. Using a top coin identifier app can help you distinguish this specific release from other quarters in the series. Yellowstone, established in 1872 as the world’s first national park, was the natural choice to represent Wyoming.
The design on the reverse captures the iconic Old Faithful geyser erupting, with a majestic bison in the foreground. While millions of Yellowstone quarters were minted for circulation in Philadelphia (P) and Denver (D), the “S” mint mark indicates the coin was produced at the San Francisco Mint. Unlike the P and D versions you find at the grocery store, the “S” quarters were specifically minted for collectors.
If you aren’t sure which version you have, you can use the CoinKnow app to scan the coin’s face. The app uses advanced image recognition to tell you immediately if you are looking at a standard business strike or a high-value proof. Understanding the history and production of these coins is the first step in determining if you’ve found a common pocket piece or a collector’s treasure.
Your Old Coin Could Be Valuable!
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Understanding the San Francisco “S” Mint Mark Varieties
The “S” mint mark on a 2010 Yellowstone quarter signifies it is a “Proof” coin. Proofs are not meant for general spending; they are struck using polished dies and specially treated blanks to create a mirror-like finish. However, there is a catch: the San Francisco mint produced two distinct versions of the 2010-S Yellowstone Quarter. One is made of the standard copper-nickel “clad” composition, and the other is struck in 90% fine silver.
To tell them apart, you should look at the edge of the coin. If you see a copper-colored stripe, it is a clad proof. If the edge is solid silver, you have the more valuable silver version. Serious collectors often check the Yellowstone quarter price charts for high-grade specimens to see how much of a premium their specific version carries.
Your Old Coin Could Be Valuable!
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Because these was never intended for circulation, any “S” mint quarter you find in your pocket change is considered an “impaired proof.” Even though it has been scratched or dulled by being spent, it still carries a premium over its face value of 25 cents. The CoinKnow app is particularly helpful here, as it can help identify the level of surface wear and how it affects the final price.
| Variety | Composition | Mintage |
|---|---|---|
| 2010-S Clad Proof | 91.67% Copper, 8.33% Nickel | 1,685,216 |
| 2010-S Silver Proof | 90% Silver, 10% Copper | 585,515 |
Grading and Condition: Why It Matters for Your Quarter
When it comes to the 2010-S Yellowstone Quarter value, condition is everything. Professional graders use a 70-point scale. A grade of PR69 is very common for proof coins and usually worth just a few dollars above the melt value of the silver or the base cost of the set. However, a “Perfect” PR70 grade can skyrocket the value significantly because collectors strive for perfection.
A 2010-S Silver Yellowstone Quarter in PR70 Deep Cameo (DCAM) status is a rarity that fetches a massive premium at auction. Deep Cameo refers to the intense contrast between the frosted design (the geyser and bison) and the mirror-like background. You can find more comprehensive 2010 quarter value guides online to compare how these grades affect the market price.
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Even if you aren’t a professional grader, you can look for “milk spots” or cloudy haze on the coin. These are common defects on 2010-dated coins and can lower the value. Keeping your coins in protective flips or capsules is essential to preserving whatever value they currently have. If you find a coin that looks “too shiny” to be normal change, it’s likely one of these proof versions.
The Value of 2010-S Silver vs. Clad Quarters
The price gap between the clad and silver versions of the 2010-S Yellowstone Quarter is driven largely by the spot price of silver. Each 90% silver quarter contains about 0.1808 troy ounces of pure silver. This means even if the coin is damaged, it will always be worth at least its weight in silver. The clad version, while still collectible, does not have this “precious metal floor” to protect its value.
For those tracking their collection, CoinKnow allows you to log whether your 2010-S is clad or silver to keep an updated estimate of your collection’s total worth. During times of high silver prices, the silver Yellowstone quarter can double in value simply because of the metal content, regardless of the numismatic demand for the ATB series itself.
Your Old Coin Could Be Valuable!
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Currently, the silver proof version is much harder to find in the wild. Most were sold in specialized Silver Proof Sets by the U.S. Mint. If someone breaks open a set and spends the coins, they are literally giving away free silver! Checking your change for that distinctive “all-white” silver edge is a great habit for any casual hobbyist.
| Grade | Clad Proof Value | Silver Proof Value |
|---|---|---|
| PR 65 (Standard) | $3.00 | $15.00 |
| PR 69 (Very Choice) | $12.00 | $35.00 |
| PR 70 (Perfect) | $140.00 | $1,100.00 |
Are There Any Rare Errors for the 2010 Yellowstone Quarter?
While the 2010-S proof quarters are generally subject to high quality control, errors can still occur. Error collectors look for “doubled dies,” where the image appears to have a shadow or second ghost-like strike. On the Yellowstone design, look closely at the text “Yellowstone” or the “2010” date for any extra thickness or clear splitting of the letters.
Other possible errors include “off-center” strikes or “die cracks,” though these are extremely rare in proof coins minted in San Francisco. If you do find an error on an “S” mint coin, the value could be hundreds or even thousands of dollars because the Mint’s screening process for proofs is so rigorous.
Most people mistake common machine doubling for a “doubled die” error. Machine doubling happens when the die bounces slightly during the strike and is not worth much. If you suspect an error, it is always best to have it authenticated by a reputable coin dealer or a third-party grading service like PCGS or NGC to confirm its legitimacy and value.
Your Old Coin Could Be Valuable!
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How to Sell and Store Your Yellowstone Quarter
If you discover that your 2010-S Yellowstone Quarter is valuable, you need to know how to handle it. Never clean your coins! Scrubbing a coin with polish or even soap and water can create micro-scratches that destroy its numismatic value. Collectors prefer “original” surfaces, even if they have some natural toning or aging.
To sell your coin, you have several options. For common clad proofs, a local coin shop or an online marketplace like eBay is usually sufficient. However, for a PR70 Silver Proof, you might want to look at major auction houses. Always check recent “sold” listings rather than “asking” prices to get an accurate idea of what people are actually paying.
Proper storage is equally important. Use PVC-free plastic holders or “2×2” cardboard flips. Keeping the coin away from humidity and extreme temperature changes will prevent the silver from tarnishing and the clad from developing unsightly spots. A little care goes a long way in ensuring your 2010-S Yellowstone quarter remains a valuable part of your collection for years to come.
FAQ
Q: How can I tell if my 2010-S Yellowstone Quarter is silver?
A: The easiest way is to look at the edge (the side) of the coin. If you see a solid silver color with no copper stripe, it is likely the 90% silver version. You can also weigh it; silver quarters weigh 6.25 grams, while clad quarters weigh 5.67 grams.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
Q: Why did I find an “S” mint quarter in my pocket change if they aren’t for circulation?
A: These are called “impaired proofs.” Someone likely broke open a collector set and spent the coins. While they are no longer in perfect condition, they are still worth more than 25 cents to many collectors.
Q: What is the most expensive 2010-S Yellowstone Quarter ever sold?
A: High-grade Silver Proofs in PR70 Deep Cameo condition have sold at major auctions for over $1,200. The price depends heavily on the population of coins in that specific grade and the current demand from registry set collectors.
Q: Is the 2010 Yellowstone quarter rare?
A: The “P” and “D” versions are common. The “S” Mint Proof versions are less common, with only about 1.6 million clad and 585,000 silver versions produced. While not “rare” in the world of coins, they are much harder to find than standard quarters.