Final answer:
The question regarding the remaining acres from the Las Vegas Grant can't be answered precisely without specific information on the grant itself. Historical land grants often involved large tracts of land that were redistributed, and the Las Vegas Grant would have been subject to similar treatment as other historical land acquisitions.
Step-by-step explanation:
The subject question relates to the historical lands called the Las Vegas Grant and how many acres remained from it. There isn't direct information given about the exact amount of land remaining from the Las Vegas Grant. However, based on the provided texts, significant land deals and reappropriations occurred throughout American history concerning lands acquired from various parties including indigenous peoples and through treaties with other nations like Mexico. These historical land transactions often involved millions of acres, with parcels allocated for different purposes such as settlement, sale, or conservation efforts.
Without specific data on the Las Vegas Grant, it's hard to provide an exact figure on the remaining acres. For instance, the purchase of land for Arizona's Mesilla Valley consisted of approximately 30,000 acres, and the El Encino ranch was 4,460 acres before the US government allowed homesteaders to claim smaller plots. It's worth noting that large acreages like these were common in the 19th and early 20th centuries in the American West.